A Wireless Soil Moisture Sensor measures and reports soil moisture to a mobile device for irrigation management. This allows workers with mobility, visual, or other impairments to start and stop irrigation without going to the field to check soil conditions. It provides real-time soil moisture measurement for agriculture, horticulture, nature restoration, and landscaping. Compatible with all soil types, the probe takes moisture readings hourly then sends the data wirelessly to the free Sensoterra app. The probe is available in four lengths to accommodate various crops' root-zone depths.